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Brain CT and repeat DSA on the sixth day of admission. A large amount of SAH is observed in the region of the basal cistern, both sylvian fissures, and interhemispheric fissure (A). Repeat DSA and three-dimensional angiography show an aneurysm on the ophthalmic segment of the right internal cerebral artery, probably a blister-like dorsal wall aneurysm (B, C, D).
